Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof; and,

FIG. 7 is a rear view thereof.

The portions of the vacuum cleaner shown in broken lines are included for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM We claim the ornamental design for a vacuum cleaner, as shown and described. 